* {
    padding: 0;
    margin: 0;
}

body {
    width: 100%;
    line-height: 2.27;
    color: #747474;
}

a {
    text-decoration: none;
    color: #747474;
}

ul li {
    list-style: none;
}

#air {
    width: 100%;
    height: 130px;
}

// 导航模块
.nav {
    width: 100%;
    height: 800px;
    background: url('../img/service-bg.jpg') no-repeat;
    background-size: cover;
    display: flex;
    justify-content: center;
    align-items: center;

    .nav_text {
        color: #ffffff;
        text-align: center;
        letter-spacing: 2px;
        display: flex;
        flex-direction: column;

        :nth-child(1) {
            font-size: 80px;
            line-height: 96px;
            font-weight: 700;
        }

        :nth-child(2) {
            margin-top: 20px;
            font-size: 34px;
            line-height: 40px;
            font-weight: 400;
        }
    }
}

// 第一部分
.section-01 {
    padding: 54.922px 30px 36.609px 30px;
    display: flex;
    justify-content: center;

    .container {
        margin: 50px auto;
        width: 1170px;

        ul {
            height: 57px;
            background: #F5F5F5;
            color: #333333;
            font-size: 18px;
            text-align: center;
            line-height: 57px;
            display: flex;

            .current,
            :hover {
                background: #FF6600;
            }

            li {
                width: 20%;

                a {
                    color: #333333;
                }
            }
        }

        .change {
            margin-top: 80px;
            margin-bottom: 100px;

            img {
                width: 1170px;
            }

            .copyright {
                margin-top: -63px;
                font-size: 15px;
                display: flex;
                flex-direction: column;

                :nth-child(1) {
                    margin-bottom: 22.780px;
                    font-size: 34px;
                    color: #333333;
                    text-align: left;
                    font-weight: 700;
                    letter-spacing: 2px;
                }

                :nth-child(2) {
                    margin-top: -15px;
                }

                :nth-child(2),
                :nth-child(3) {
                    margin-bottom: 20px;
                }

                :nth-child(4) {
                    margin-top: 45px;
                }
            }

            .equip {
                margin-top: -40px;
                font-size: 15px;
                display: flex;
                flex-direction: column;


                :nth-child(4) {
                    margin-top: 20px;
                    width: 997px;
                    height: 206px;

                    img {
                        width: 100%;
                        height: 100%;
                    }
                }

                :nth-child(6) {
                    margin-top: 20px;
                    width: 1090px;
                    height: 79px;

                    img {
                        width: 100%;
                        height: 100%;
                    }
                }

                span {
                    margin-bottom: 20px;
                    letter-spacing: 2px;
                }

                :nth-child(1) {
                    margin-bottom: 22.780px;
                    height: 47px;
                    line-height: 47px;
                    font-size: 34px;
                    color: #333333;
                    letter-spacing: -1px;
                    text-align: left;
                    font-weight: 700;
                }


            }

            .music {
                margin-top: -40px;
                font-size: 15px;
                letter-spacing: 0px;
                display: flex;
                flex-direction: column;

                span {
                    margin-bottom: 20px;
                }

                :nth-child(1) {
                    height: 47px;
                    line-height: 47px;
                    font-size: 34px;
                    color: #333333;
                    text-align: left;
                    font-weight: 700;
                }

                :nth-child(2) {
                    margin-bottom: 20px;

                }

                :nth-child(3) {
                    margin-top: -5px;
                    letter-spacing: 0px;
                }


                :nth-child(6) {
                    margin: 40px 0 80px 0;
                    width: 1162px;
                    height: 316px;

                    img {
                        width: 100%;
                        height: 100%;
                    }
                }

                :nth-child(9) {
                    height: 29px;
                    line-height: 29px !important;
                }

                :nth-child(10) {
                    margin-top: 40px;
                    width: 1170px;
                    height: 735.93px;

                    img {
                        width: 100%;
                        height: 100%;
                    }
                }


                em {
                    margin-bottom: 20px;
                    height: 29px;
                    line-height: 29px;
                    font-size: 20px !important;
                    color: #333333;
                    font-weight: 700;
                }


            }
        }

    }


}